HP Color LaserJet Enterprise M751n Laser Printer - Manual (Page 184)

Table 6-11 Streak defects
Sample Description Possible solutions
Light vertical streaks that usually span the
length of the page. The defect displays only
in areas of fill, not in text or sections with no
printed content.
1. Reprint the document.
2. Remove the cartridge, and then shake
it to redistribute the toner.
3. If the issue persists, go to
support.hp.com .
NOTE: Both light and dark vertical streaks
can occur when the printing environment is
outside the specified range for temperature
or humidity. Refer to your printer's
environmental specifications for allowable
temperature and humidity levels.
Dark vertical lines which occur down the
length of the page. The defect might occur
anywhere on the page, in areas of fill or in
sections with no printed content. On color
models, these lines or streaks will also be
visible on the ITB cleaning page.
1. Reprint the document.
2. Remove the cartridge, and then shake
it to redistribute the toner.
3. Print a cleaning page.
4. Check the toner level in the cartridge.
5. If the issue persists, go to
support.hp.com .
174 Chapter 6 Solve problems ENWW